AIM AND OBJECTIVE: The aim of this study was to explore the association between oral health and nutritional status in the context of daily care for older people. BACKGROUND: Oral problems often increase with age and affect a person's ability to chew and swallow. They might also influence the ability to maintain a satisfactory nutritional status. Oral health awareness is therefore of great importance in nursing care for older people. METHODS: Data from the Swedish quality register, Senior Alert, were used, including structured assessments of both oral and nutritional status using the Revised Oral Assessment Guide - Jonkoping (ROAG-J) and the Mini Nutritional Assessment (MNA). In total, 1156 persons (mean age: 82.8+/-7.9) had both oral and nutritional assessments registered by the nursing staff in daily care. RESULTS: Approximately 29% of participants had moderate oral health problems. Another 12% had severe problems. Over 60 percent of the persons were considered at risk of malnutrition or were malnourished. There was a weak correlation between poor nutritional status and poor oral health, and approximately one-third of the persons who were at risk or malnourished had simultaneous oral problems. A multivariate logistic regression revealed that when problems involving voice and swallowing were present, there was also a greater possibility of being assessed as at risk of malnourishment or being malnourished. CONCLUSION: There is a relationship between oral health problems and nutritional status, indicating the importance of evaluating oral health status in older persons with nutritional problems. This article is protected by copyright. All rights reserved.